3514 4w tube products are offered for sale by suppliers on Alibaba.com, of which led tubes accounts for 6%, led bulbs accounts for 5%, and energy saving & fluorescent accounts for 4%.
A wide variety of 4w tube options are available to you, such as straight, tube and bulb.You can also choose from fluorescent, cfl and led 4w tube,as well as from white, blue, and black 4w tube, and whether 4w tube is t-tube, e27, or t4.